CA2327405A1 - Methode de repartition binaire d'un codeur audio perceptif offrant une uniformite amelioree de la qualite perceptive - Google Patents

Methode de repartition binaire d'un codeur audio perceptif offrant une uniformite amelioree de la qualite perceptive Download PDF

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Publication number
CA2327405A1
CA2327405A1 CA002327405A CA2327405A CA2327405A1 CA 2327405 A1 CA2327405 A1 CA 2327405A1 CA 002327405 A CA002327405 A CA 002327405A CA 2327405 A CA2327405 A CA 2327405A CA 2327405 A1 CA2327405 A1 CA 2327405A1
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Canada
Prior art keywords
perceptual
frame
coding
perceptual coding
frames
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
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CA002327405A
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English (en)
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CA2327405C (fr
Inventor
Christof Faller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia of America Corp
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Lucent Technologies Inc
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Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of CA2327405A1 publication Critical patent/CA2327405A1/fr
Application granted granted Critical
Publication of CA2327405C publication Critical patent/CA2327405C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/002—Dynamic bit allocation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G10L19/0208—Subband vocoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
CA002327405A 2000-01-04 2000-11-27 Methode de repartition binaire d'un codeur audio perceptif offrant une uniformite amelioree de la qualite perceptive Expired - Fee Related CA2327405C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/477,314 2000-01-04
US09/477,314 US6499010B1 (en) 2000-01-04 2000-01-04 Perceptual audio coder bit allocation scheme providing improved perceptual quality consistency

Publications (2)

Publication Number Publication Date
CA2327405A1 true CA2327405A1 (fr) 2001-07-04
CA2327405C CA2327405C (fr) 2005-05-03

Family

ID=23895405

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002327405A Expired - Fee Related CA2327405C (fr) 2000-01-04 2000-11-27 Methode de repartition binaire d'un codeur audio perceptif offrant une uniformite amelioree de la qualite perceptive

Country Status (5)

Country Link
US (1) US6499010B1 (fr)
EP (1) EP1117089B1 (fr)
JP (1) JP4219551B2 (fr)
CA (1) CA2327405C (fr)
DE (1) DE60000047T2 (fr)

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US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US7110941B2 (en) * 2002-03-28 2006-09-19 Microsoft Corporation System and method for embedded audio coding with implicit auditory masking
US20030220800A1 (en) * 2002-05-21 2003-11-27 Budnikov Dmitry N. Coding multichannel audio signals
US7299190B2 (en) * 2002-09-04 2007-11-20 Microsoft Corporation Quantization and inverse quantization for audio
JP4676140B2 (ja) * 2002-09-04 2011-04-27 マイクロソフト コーポレーション オーディオの量子化および逆量子化
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
KR100477699B1 (ko) * 2003-01-15 2005-03-18 삼성전자주식회사 양자화 잡음 분포 조절 방법 및 장치
US7724827B2 (en) 2003-09-07 2010-05-25 Microsoft Corporation Multi-layer run level encoding and decoding
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
GB0428160D0 (en) * 2004-12-22 2005-01-26 British Telecomm Variable bit rate processing
US8599925B2 (en) 2005-08-12 2013-12-03 Microsoft Corporation Efficient coding and decoding of transform blocks
EP1933305B1 (fr) * 2005-09-05 2011-12-21 Fujitsu Ltd. Dispositif de codage audio et methode de codage audio
US8332216B2 (en) 2006-01-12 2012-12-11 Stmicroelectronics Asia Pacific Pte., Ltd. System and method for low power stereo perceptual audio coding using adaptive masking threshold
JP4548348B2 (ja) * 2006-01-18 2010-09-22 カシオ計算機株式会社 音声符号化装置及び音声符号化方法
US7831434B2 (en) 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US8190425B2 (en) 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
FR2898443A1 (fr) * 2006-03-13 2007-09-14 France Telecom Procede de codage d'un signal audio source, dispositif de codage, procede et dispositif de decodage, signal, produits programme d'ordinateur correspondants
US8032371B2 (en) * 2006-07-28 2011-10-04 Apple Inc. Determining scale factor values in encoding audio data with AAC
US8010370B2 (en) * 2006-07-28 2011-08-30 Apple Inc. Bitrate control for perceptual coding
JP2008233436A (ja) * 2007-03-19 2008-10-02 Fujitsu Ltd 符号化装置、符号化プログラムおよび符号化方法
US7774205B2 (en) 2007-06-15 2010-08-10 Microsoft Corporation Coding of sparse digital media spectral data
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
GB2454208A (en) * 2007-10-31 2009-05-06 Cambridge Silicon Radio Ltd Compression using a perceptual model and a signal-to-mask ratio (SMR) parameter tuned based on target bitrate and previously encoded data
JP4618325B2 (ja) * 2008-04-28 2011-01-26 ソニー株式会社 情報処理装置及び情報処理方法並びにプログラム
US8346547B1 (en) 2009-05-18 2013-01-01 Marvell International Ltd. Encoder quantization architecture for advanced audio coding
WO2012122397A1 (fr) 2011-03-09 2012-09-13 Srs Labs, Inc. Système destiné à créer et à rendre de manière dynamique des objets audio
KR20140017338A (ko) * 2012-07-31 2014-02-11 인텔렉추얼디스커버리 주식회사 오디오 신호 처리 장치 및 방법
WO2014165806A1 (fr) 2013-04-05 2014-10-09 Dts Llc Codage et transmission audio en couches
US20150025894A1 (en) * 2013-07-16 2015-01-22 Electronics And Telecommunications Research Institute Method for encoding and decoding of multi channel audio signal, encoder and decoder
CN109451309B (zh) * 2018-12-04 2022-07-26 南京邮电大学 Hevc全i帧编码基于显著性的ctu层码率分配方法

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NL9000338A (nl) * 1989-06-02 1991-01-02 Koninkl Philips Electronics Nv Digitaal transmissiesysteem, zender en ontvanger te gebruiken in het transmissiesysteem en registratiedrager verkregen met de zender in de vorm van een optekeninrichting.
US5040217A (en) * 1989-10-18 1991-08-13 At&T Bell Laboratories Perceptual coding of audio signals
EP0559348A3 (fr) 1992-03-02 1993-11-03 AT&T Corp. Processeur ayant une boucle de réglage du débit pour un codeur/décodeur perceptuel
KR970005131B1 (ko) * 1994-01-18 1997-04-12 대우전자 주식회사 인간의 청각특성에 적응적인 디지탈 오디오 부호화장치
JP4005154B2 (ja) * 1995-10-26 2007-11-07 ソニー株式会社 音声復号化方法及び装置
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
JPH1035876A (ja) 1996-07-19 1998-02-10 Daifuku Co Ltd 仕分け装置
US6108372A (en) * 1996-10-30 2000-08-22 Qualcomm Inc. Method and apparatus for decoding variable rate data using hypothesis testing to determine data rate
GB2326572A (en) * 1997-06-19 1998-12-23 Softsound Limited Low bit rate audio coder and decoder
JP3802219B2 (ja) * 1998-02-18 2006-07-26 富士通株式会社 音声符号化装置

Also Published As

Publication number Publication date
US6499010B1 (en) 2002-12-24
CA2327405C (fr) 2005-05-03
EP1117089B1 (fr) 2001-11-14
JP2001236099A (ja) 2001-08-31
EP1117089A1 (fr) 2001-07-18
JP4219551B2 (ja) 2009-02-04
DE60000047D1 (de) 2002-02-21
DE60000047T2 (de) 2002-07-11

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